linux-kernel - [PATCH 10/15] nvme: store the endurance group id in struct nvme_ns

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Message-ID: <20241119121632.1225556-11-hch@lst.de>
Date: Tue, 19 Nov 2024 13:16:24 +0100
From: Christoph Hellwig <hch@....de>
To: Jens Axboe <axboe@...nel.dk>
Cc: Christian Brauner <brauner@...nel.org>,
	Keith Busch <kbusch@...nel.org>,
	Sagi Grimberg <sagi@...mberg.me>,
	Kanchan Joshi <joshi.k@...sung.com>,
	Hui Qi <hui81.qi@...sung.com>,
	Nitesh Shetty <nj.shetty@...sung.com>,
	Jan Kara <jack@...e.cz>,
	Pavel Begunkov <asml.silence@...il.com>,
	linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-nvme@...ts.infradead.org,
	linux-fsdevel@...r.kernel.org,
	io-uring@...r.kernel.org
Subject: [PATCH 10/15] nvme: store the endurance group id in struct nvme_ns_head

The FDP code needs this.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 drivers/nvme/host/core.c | 4 ++++
 drivers/nvme/host/nvme.h | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 1a8d32a4a5c3..d194b36b08ac 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -38,6 +38,7 @@ struct nvme_ns_info {
 	u32 nsid;
 	__le32 anagrpid;
 	u8 pi_offset;
+	u16 endgid;
 	bool is_shared;
 	bool is_readonly;
 	bool is_ready;
@@ -1600,6 +1601,7 @@ static int nvme_ns_info_from_identify(struct nvme_ctrl *ctrl,
 	}
 
 	info->anagrpid = id->anagrpid;
+	info->endgid = le16_to_cpu(id->endgid);
 	info->is_shared = id->nmic & NVME_NS_NMIC_SHARED;
 	info->is_readonly = id->nsattr & NVME_NS_ATTR_RO;
 	info->is_ready = true;
@@ -1638,6 +1640,7 @@ static int nvme_ns_info_from_id_cs_indep(struct nvme_ctrl *ctrl,
 	ret = nvme_submit_sync_cmd(ctrl->admin_q, &c, id, sizeof(*id));
 	if (!ret) {
 		info->anagrpid = id->anagrpid;
+		info->endgid = le16_to_cpu(id->endgid);
 		info->is_shared = id->nmic & NVME_NS_NMIC_SHARED;
 		info->is_readonly = id->nsattr & NVME_NS_ATTR_RO;
 		info->is_ready = id->nstat & NVME_NSTAT_NRDY;
@@ -3644,6 +3647,7 @@ static struct nvme_ns_head *nvme_alloc_ns_head(struct nvme_ctrl *ctrl,
 	head->ids = info->ids;
 	head->shared = info->is_shared;
 	head->rotational = info->is_rotational;
+	head->endgid = info->endgid;
 	ratelimit_state_init(&head->rs_nuse, 5 * HZ, 1);
 	ratelimit_set_flags(&head->rs_nuse, RATELIMIT_MSG_ON_RELEASE);
 	kref_init(&head->ref);
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 900719c4c70c..9b916a904f00 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -491,6 +491,8 @@ struct nvme_ns_head {
 	struct device		cdev_device;
 
 	struct gendisk		*disk;
+
+	u16			endgid;
 #ifdef CONFIG_NVME_MULTIPATH
 	struct bio_list		requeue_list;
 	spinlock_t		requeue_lock;
-- 
2.45.2